Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541865 | EER high frequency amplifier | Shinji Ohkawa | 2009-06-02 |
| 4582767 | Lead storage battery | Yuji Morioka, Sigeru Yamasita, Hiroyuki Miyata, Takahiko Ohama | 1986-04-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7541865 | EER high frequency amplifier | Shinji Ohkawa | 2009-06-02 |
| 4582767 | Lead storage battery | Yuji Morioka, Sigeru Yamasita, Hiroyuki Miyata, Takahiko Ohama | 1986-04-15 |